Quantum phenomenological gravitational dynamics: A general view from thermodynamics of spacetime (Ibericos)
2021
Abstract
It is known that Einstein equations can be derived from the proportionality between entropy and horizon area. However, it is also known that when quantum gravity effects are considered, a correction to the entropy logarithmic in horizon area appears.
Here, I will present quantum modified gravitational dynamics implied by this corrected entropy and discuss its main features. Furthermore, I will outline the application of the modified dynamics to cosmology, suggesting the replacement of the Big Bang singularity by a regular bounce.